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Okay,
lets see a show of hands here; how many of you have ever gone to the bank,
removed a goodly sum of money, lets say $400 dollars US, or £218 Pounds Sterling
and then promptly chucked it in the first trash receptacle?
That’s exactly the process most folks take when selecting their first
IP/Network camera.
With so
many choices, how do you choose? Do not
buy a camera until you have done your homework.
Do not collect $200 dollars, step away from the cash machine.
Location, location, location
Like the
real estate mantra, location, location, location. Start with a site survey. You
think you need to see what’s happening at a particular junction or area, but is
that where you want your camera to be placed?
Right on top of the area? Step
back, way back – look at the area from as many angles as possible before you
permanently mount your camera. If at all
possible, test the area. Use a
traditional hand held home video camera and shoot as many angles as you
can. Note them in a log book then play
them back to see what the camera sees.
Make notes on time of day, weather conditions, indoor/outdoor, volume of
available light – return to the area at different times of the day to get a
sense of the changing light and volume of people, vehicles or objects being
monitored. You also need to take into
account any municipal codes that enforce privacy rights if your camera is not
positioned correctly and has too broad a field of vision and can see into
personal abodes. I think your getting the “picture.”
Specs? I don't need no stinking specs!
Now that
you have the location what camera do you use?
Check your specs! Is this an
indoor application or outdoor? Is the
camera even rated for outdoor use? Don’t
think you can just put an indoor use only camera in a protective enclosure and
call it a day.
At a
recent AXIS training session in Las Vegas, another place to chuck hundreds of
dollars in the closest trash receptacle or the closest craps table, we learned
first hand about indoor/outdoor application of specific cameras at it relates to
the cameras iris. The camera iris, like
the human iris can be flooded with light to the point of not being able to
see. In both instances, over time you
will have diminished vision if not a total loss if you’re not careful. As this relates to IP cameras you need to
know if the iris is rated for outdoor use.
Too many installers think this is just about keeping the camera dry or
out of harms way from dust and moisture – not so grasshopper. Go out to http://www.axis.com and find out more about training.
Let there be light!
So, now
you know that you need an indoor or outdoor camera – what is the lighting
like? Will the lighting schedule
change? If you’re placing cameras in a
public school you may run into lighting schedules that give you great indoor
light during the day but change over into a “saver” mode after the custodial
staff goes home. Trying to record the
dark is not a fruitful exercise. It
wastes storage space and makes you look bad.
On the other hand, your client may have terra bytes of NAS and could give
a hoot what gets recorded after 8:00 PM.
Smart installers ask first.
Be sure
you cover these kinds of recording aspects with your clients so you both can
partner on what works best for the situation.
Like I said, they may not care what happens after 8:00 PM until 6:00 AM –
you need to ask about this kind of situation and come up with a solution of
cameras, IR (infra red) and light to make sure your meeting their needs or least
giving them the option to say they do or don’t need it. You then need to documents this so you CYA,
“cover your ankles.”
And there was more light - Lux
Lux – no,
not like Delux – light lux as in candle power.
Your camera will be rated for a range of lux – the optimum range that you
can expect to see stuff happening with good resolution. Know thy light! So how do you know what the lighting
conditions are to match up with a camera?
Guess? It’s light so it’s
good? It’s dark so its not? Jeez you guys – give me a brake. Get a light meter and test the
area.
Yes
that’s right, buy a light meter and join the human race. Not the little hand held jobs that your great
grandfather used to measure light for his 35mm camera but the nifty Digital
Light Meter units that measure lux – check out Charlie Pierces website –
Leapfrog training - http://www.ltctrainingcntr.com/
- click on the “Tooling Division” link and find the Digital Light Meter. While your there check out his articles and
training material. This guys is either
on to something or on something – not sure. Charlie's the best - really - look
up CCTV guru in the dictionary and you'll find Charlie's bio.
So what
do you do with the meter now that you have it?
If the camera will be used outdoors take readings through out the course
of a day to get a lux baseline to gauge what kind of lux range your area of
interest falls in. Also factor in light
loss if a camera enclosures glass is smoke coloured (that was for my
euro-friends – my word processor spreaks engrish, two!). If you’re using a fast speed dome camera it
most likely will include a dark privacy cover over the camera. Factor you light accordingly.
So, you
thought you could just throw a few cameras on the walls and call it a day. Wrong-o camera citizens – there’s art and
science involved here with a dash of trial and error. Do your homework to avoid the “trial” part of
the equation. I don’t want any of you
installers to become my next news article in IPCameraReports.com.
Have I got a deal for
you
There’s
more to placing cameras than being a “camera slammer,” a term derived from days
of yore when shifty salesman called “trunk slammers” would pitch their snake oil
from the back of their cars with the trunk lid up and the motor running. Being the generous lot that they were their
products would include a “tail light” warranty.
When you could no longer see their tail lights the warranty was
up.
Get smart
Here’s
some links to peruse to “up” your camera knowledge quotient –
AXIS - http://www.axis.com/products/video/tech_guide.htm
Sony - http://bssc.sel.sony.com/Professional/markets/security/ipeducation.html
Samsung - http://www.samsung.com/Products/Cameras/technicalinfo/selecting.htm
And don’t
forget the forums here at
IP Camera Reports – some of the best and brightest installers
and camera geeks hang out here. Ask
them, they’ll tell you so.
Now where
did I put that ATM card?
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