Subscriber Discussion

Suggestions For Below Zero Outdoor Camera

UE
Undisclosed End User #1
•Jun 19, 2018

hi all,

i'm hoping i can get some guidance.  i'm looking to build a multi camera system with these kinds of requirements:

 

- outdoor day/night use

- license plate capture ability

- hoping to have about 4k resolution

- below freezing temperatures at over 8,000 ft above sea level

- PoE distance of up to 1,000 meters

 

my big concern is that lots of cameras say they can handle below freezing temperatures, but just because a vendor lists it doesn't mean that it will give me reasonably clear images in the middle of winter.

to see clear images in winter for an outdoor camera, do i need an active heater?  do many cameras come with these?

 

also, it seems like it's difficult for me to find DC voltage requirements on cameras, which is a concern for long haul PoE.

 

thanks for any guidance/advice!

JH
Jay Hobdy
•Jun 19, 2018
IPVMU Certified

1000M seems like an awfully long distance to run PoE, even with extenders. Veracity has one rated for 1050 meters but only delivers 5W. I doubt 5W will run any heaters. You may have to get some power to these locations and run fiber.

 

You also don't need 4K for license plates. The right 2MP camera will do just fine.

UE
Undisclosed End User #1
•Jun 20, 2018
In reply to Jay Hobdy

i've read the license plate shoot out study here on IPVM - and it looks like the 1080 cameras do better than the 4k ones they tested.

but only a subset of the cameras will be doing license plate work.  i was just hoping to be able to use a 4k for both applications.

 

any ideas on cameras with heaters?  or just general advice about extreme cold weather surveillance?

U
Undisclosed #2
•Jun 19, 2018
IPVMU Certified

Below Zero 

Would that be F or C? Both are freezing but 0 F is much colder.

PoE distance of up to 1,000 meters

Spec nonwithstanding, a half mile Ethernet cable @57v will drop most all the power just getting there, especially if it’s running a heater.

 

UE
Undisclosed End User #1
•Jun 20, 2018
In reply to Undisclosed #2

oops - i mean below zero C (freezing.)

and yes i realize i'd have to feed a much higher voltage from the source end to account for the voltage drop.  i'll have to experiment, but in order to know my target, i need to know the required voltage that the camera needs.

if that doesn't work out, i may just pull some AC power closer to the where the cameras need to be.

in any case, any advice on a camera that has a heater?

UD
Undisclosed Distributor #3
•Jun 21, 2018

You might look at Mobotix cameras because they run at low temperatures without a heater.

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