ᐅ Video surveillance: IP cameras, NVRs (Network Video Recorders), servers, etc.
Created on: 5 Apr 2018 15:58
M
Mycraft
Who has installed or is planning to install a system like this? Does it make you feel more secure? Can your cameras do more than just show images?
This is what it looks like for us after a series of burglaries in the neighborhood a few years ago.
Outside, there are five bullet cameras and one dome camera installed at the entrance. Inside the house, there are three more dome cameras.
Everything is connected via PoE. Inside, there is an NVR with enough storage capacity for about 14 days of continuous recording. However, the cameras are (of course) event-triggered and only record when movement appears in specific areas of the image. (Therefore, the NVR has never actually been full.)
The cameras have different resolutions depending on their installation location, ranging from 3 to 10 MP.
The affected camera can also trigger actions during prolonged movement or tampering. For example, turning lights on or flashing them, sending images via the internet, activating a siren, and so on.
I wouldn’t claim that this makes us live more securely, but it does make us feel calmer. Because you know that as long as no images come from your home, everything is fine.
This is what it looks like for us after a series of burglaries in the neighborhood a few years ago.
Outside, there are five bullet cameras and one dome camera installed at the entrance. Inside the house, there are three more dome cameras.
Everything is connected via PoE. Inside, there is an NVR with enough storage capacity for about 14 days of continuous recording. However, the cameras are (of course) event-triggered and only record when movement appears in specific areas of the image. (Therefore, the NVR has never actually been full.)
The cameras have different resolutions depending on their installation location, ranging from 3 to 10 MP.
The affected camera can also trigger actions during prolonged movement or tampering. For example, turning lights on or flashing them, sending images via the internet, activating a siren, and so on.
I wouldn’t claim that this makes us live more securely, but it does make us feel calmer. Because you know that as long as no images come from your home, everything is fine.
Steffen80 schrieb:
If someone breaks into our house, the entire place lights up (several hundred LED watts!) along with 4 LED floodlights outside. Since we also have cameras inside, there should be some usable footage. The cameras also let us check in while we’re on vacation. There could, of course, also be a false alarm. At least you’ll have really well-lit footage in Full HD (probably even 4K for you) showing most likely masked people emptying your house. Yay.
Seriously, I do install cameras myself, it’s not that I don’t, but I doubt they actually prevent break-ins or greatly help with investigations. It’s more subjective—I’m not going to sugarcoat it. As mycraft already said, they should be seen as a supplement to much more effective passive measures that actually prevent break-ins.
At the end of the day, you’ll probably even get criticized for not putting up any signs saying “This area is under video surveillance.”
@ypg Can you share anything about the clearance rates for residential burglaries and how much video footage contributes to significantly higher clearance rates? Just out of curiosity.
sven.conzi6 Apr 2018 09:32According to police statistics, most burglaries occur during the daytime when people are at work and the neighborhood is somewhat quieter.
S
Steffen806 Apr 2018 10:12No, it’s not about having usable materials. I’m not deluding myself on that. It’s about two things: 1. getting an external perspective for myself (as I already mentioned), and 2. creating a lot of noise (outdoor alarm, smoke detectors, dogs barking from all speakers, bright lights, all blinds raised immediately) to confuse intruders and scare them off as soon as the alarm goes off… I think that’s not completely unrealistic.
Regards, Steffen
PS: fortunately, he has a home office, so this shouldn’t be too much of an issue during the day.
Regards, Steffen
PS: fortunately, he has a home office, so this shouldn’t be too much of an issue during the day.
ruppsn schrieb:
@ypg Can you provide any information on the clearance rate of residential burglaries, and to what extent video footage significantly improves clearance rates? Just out of interest.No.
And if I may say so: since there is no obligation for victims or witnesses to record high-quality video footage and provide it to the investigating authorities, there can be no reliable statistics on this. Such material is simply a "nice-to-have" for law enforcement, for example to narrow down the time of the crime. The police have investigative approaches and causal chains that citizens have no insight into. Chance may play a role here, but also traces and movement images. And this certainly depends on more than just one type of offense.
Steven schrieb:
I’ve experienced that as well. The police weren’t particularly committed there either.Yes, I know that: citizens see a very different picture than the police.
Back in the day, I was taught this: even if there is no forensic evidence usable for us, always do something for the victim so that they feel satisfied. We don’t want people saying that we took no action.
We gladly accept a good color photo of the offender during the crime, preferably a portrait suitable for facial recognition.
I have a Jovision PoE camera and might soon get a Digoo Wi-Fi camera, depending on whether I can get it to work properly without using an app. Actually, I would like to have more cameras, but it’s difficult to find outdoor positions where neighbors are not captured.
So far, I haven’t found the perfect software either. The motion detection software, in particular, is not ideal; I have tried iSpy and go1984. For example, the garden camera often triggers motion alerts due to spider webs.
Hopefully, everything will eventually be integrated into OpenHAB and run on a Raspberry Pi. The cameras will then only be activated during the day when no one is home.
The main goal of my outdoor cameras is to detect people who are surveying the property. It’s my personal theory that nobody would break in somewhere without knowing exactly where to go.
So far, I haven’t found the perfect software either. The motion detection software, in particular, is not ideal; I have tried iSpy and go1984. For example, the garden camera often triggers motion alerts due to spider webs.
Hopefully, everything will eventually be integrated into OpenHAB and run on a Raspberry Pi. The cameras will then only be activated during the day when no one is home.
The main goal of my outdoor cameras is to detect people who are surveying the property. It’s my personal theory that nobody would break in somewhere without knowing exactly where to go.
ypg schrieb:
Yes, I know the feeling: the public sees a completely different picture than the police.
"Back then," I was taught: even if there is no trace evidence that can be analyzed by us, always do something for the victim to keep them satisfied. Hello ypg
Just to clarify: shortly after the attack (about 60 minutes), I was able to confidently narrow down the location of the three perpetrators to a section of one street covering about 20 houses. The police did not consider it feasible to go door-to-door at those houses to ask about the perpetrators.
Steven