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112 posts

Master Geek
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  Reply # 2166929 24-Jan-2019 13:30
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This will help you select a lens...

 

https://www.youtube.com/watch?v=UsuHwptNI9I


697 posts

Ultimate Geek
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  Reply # 2166945 24-Jan-2019 13:47
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neb:
Coil:

 

Looking to find the field of view or angle of view for an IP Camera, We want to mount it on the eve of a house and have the camera able to see a slither down each wall.

 

This sounds a bit like hunting rabbits with cruise missiles. Given the cost of the PTZ Dahuas, and the complexity of dealing with two completely different fields of view, wouldn't it make more sense to install two fixed cameras?

 

I would agree with the 2 camera option for the OPs application.

 

The peripheral motion sensing for snap shots is pretty poor on my Dahua 4Mp cameras.

 

 





Gordy


 
 
 
 


27582 posts

Uber Geek
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Biddle Corp
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  Reply # 2167005 24-Jan-2019 15:36
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No need for 2x cameras - Dahua do a dual sensor Starlight dome.

 

OP however did talk about object tracking - but I'm not sure they really understand how this works.

 

 

 

 




6829 posts

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  Reply # 2167013 24-Jan-2019 15:57
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chimera:

 

Coil:

 

The customer wants to be able to see things coming up a right of way in detail and have the camera able to track it.

 

chimera: Only if you are exposing your cameras to the net. Personally I have no ports open inbound to my NVR, I run SSL VPN on my iPhone back to my firewall then run iPhone app to view cameras remote. Don’t trust any IP camera software by any vendors to be fair, very easy to hack cameras on the net.


This is a concern, all the camera vendors have had their fair share of issues. I recall a few years ago wen I accidentally exposed RDP to the web on a fresh server I just deployed... Yeah that went well...

 

The customer is ex police etc and you can see where this is going.. 

 

 

Explain to him the risks, give him the options (Firewall with SSL VPN client personally I used Fortigate, or his existing NAT router with PAT) and let him make the call.

 

That way the onus is on him - it all really boils down to a cost thing, either do it properly (more $$), or do it half-arsed (less $$) but risk being hacked and the world watching you walk butt naked down your hallway

 

 

 

 

 

 

That's the struggle, He wants to access from overseas and remotely as it is a holiday home here in NZ.
Not too sure what way to go but I'll have a chat via PM.

Cheers

 

Suckerpunch:

 

This will help you select a lens...

 

https://www.youtube.com/watch?v=UsuHwptNI9I

 

 

So it looks like a 4MM sensor which would give you 80* of view.

 

sbiddle:

 

No need for 2x cameras - Dahua do a dual sensor Starlight dome.

 

OP however did talk about object tracking - but I'm not sure they really understand how this works.

 

 

 

 

 

 

Yes, The website for the product suggests it simply tracks humans that it identifies. 
The specifics around this setup are very loose, the customer is putting the ball in my court to get it done but then to relay it all off him for sign off, so I'm walking on egg shells with stupid requirements and the fact it is in Huia is already a write off for me and I really can't be bothered with the job after further and further complication.

 

 

 

What I will do is suggest 2X of those dual sensor domes, so he can put one in opposing corners and then a single 30X PTZ camera he can play with and do what he wants with. So that way we got eyes on 4 sides at all times, and some dumb camera with a whole lot of oversold under delivered features!

Anyone want a camera install job? 





 


3843 posts

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  Reply # 2167018 24-Jan-2019 16:10
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A $50 Mikrotik will give you a VPN server to connect to. That coupled with a dynamic dns domain would be good as gold.


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