Re: OFF-TOPIC: DVR Systems

From: scorpion <scorpio..._at_hotmail.com>
Date: Wed, 07 Jun 2006 10:17:02 -0700

     I can sell you a system as well. Here is some quick advice.
DVRs: Figure out how many cameras you will need and multiply that
figure by 5. Example: 4 camera X 5 = 20. If the DVR has an 80GB hard
drive then you will get 4 days of recorded history. IF you need more
recorded history get a larger hard drive. 500GB hard drive divided by
20 = 25 days of recorded history. 16 cameras X 5 = 80. 500GB hard
drive divided by 80 = 6.25 days of recorded history. MOTION DETECTION:
 The DVR will look at the video and it will "memorize" where all of the
color pixels are in the video, when someone walks in front of the
camera it will disrupt the color pixels, and that is how it detects
motion. When the DVR "detects" motion it then records the video to
your hard drive. If you had a camera outside, you would not see the
sun rise, and the sun set, and the same tree swaying in the wind all
day long. You would only see "events", such as the meter maid walking
in the yard, or dogs, or cats ect. Motion detection will provide more
recorded history there by allowing you to use a smaller hard drive.
ADDED FEATURES: networking. This allows you to see your cameras from a
different location, such as with a lap top with cellular internet, or
from the computer at work, or home. CD buner (or DVD). This is a
great way to down load video to give to the police, and the insurance
companies. I do not reccomend CD/DVD burners in a low security
residential systems because most individuals have a vcr laying around
that they can record the video and pass out the VCR tapes. Audio: I
do not reccomend them in a low security residential system but are a
must in high security, or commercial applications. It helps to
identify someone who covers their face during a robbery. In a
residential system you must learn about your states privacy, and
invasion laws.

Everyone in this group is familiar about covert cameras hidden in
objects like smoke detectors, motion detectors, clocks, and teddy bears
so I will not go in to those items.

If you are doing some PI work you can use small pin hole camera, and
mount them in the attic. Just pierce the ceiling and make it as small
of a hole as you can. For short term you can just keep the DVR in the
attic as well. Put an adapter in the attic light and plug in your
power there.

I reccomend day/night (IR) cameras on the interiors as well, such as a
babys crib, or a home bound patient where you want to watch a nurse.
The reason I recommend an outdoor camera is that 6 months down the road
your situation may change, such as a peeping tom. You can now take
this camera outside and place it on your 14 year old daughter's window,
or etc. When this situation passes you can put the camera back inside.

WIRELESS CAMERAS Be very carefull! Ask about the wattage of the
transmitter. Most are around 100 milli watts. This will give you
about 300 feet line of sight outside. The signal will decrease when it
penetrates a wall. After you penetrate a second wall your signal will
be greatly reduce. If the wireless camera is a 2.4 giga hertz system,
you may have problems if there is a wireless router for your computer.

     For custom application email me at icuspy..._at_hotmail.com.

Best regards,

Gregg
Received on Sat Mar 02 2024 - 00:57:23 CST