Key Application
Data for the CPT-DVR2016
Assuming you already
know about the benefits of a DVR as compared to VCR's here are key points you
should know about installing the CPT-DVR2016.
How Much Recording
Time Do I Have?
- Do not try to
think of recording time in terms of a VCR. A VCR runs at a specific speed
and depending on the setting and length of tape used (T-120, T-160), a week's
continuous recording can be simply achieved. This will be in a time-lapse
mode and you will not record a fluid picture, but a kind of stop motion effect.
If a number of cameras are recorded via a mux, this is even more pronounced.
- With a hard-drive
recorder we are storing digital information to a disc and we now must consider
video pictures in terms of digital information and how much storage space
each image requires. In the "setup" function of the CPT-DVR2016 there are
a number of settings available to us for adjusting each camera for required
image detail, rate of recording, etc. Depending on these settings, we require
2 - 4KB per image of disc space. The CPT-DVR2016 is available with hard-drive
capacities of between 20GB to 130GB, so it is a matter of math to calculate
how much time we can expect to record onto the hard-drive. A simple formula
to give an approximate recording time is:
i. With
cameras at "medium' setting: 50/n x G = h
ii.
where n = number of cameras 1. G = size of hard-drive 2. h = hours of
recording
- We have now
had a number of units installed and at one site a 50 GB unit has 8 cameras
all set at a medium setting. All cameras are running continuously and we are
achieving about 12 days before the drive is full and begins to recycle.
- From this it
can be seen it is important to conserve hard drive space. We must spend a
bit of time in the setup to do this. The CPT-DVR2016 allows us to setup each
and every camera individually. We can adjust the cameras watching finer detail
such as cash, to a higher resolution. We can adjust cameras watching less
detailed images such as traffic flow, to a lower resolution. We can disable
cameras so as they only record when necessary and not store hours and hours
of nothing. The objective is to only record as much as required to suite the
needs and requirements of each specific situation. Do not fill the hard drive
with unnecessary detail or unwanted images, this only makes its more cumbersome
when it comes time to retrieve data.
Key Features
Of The CPT-DVR2016
- The CPT-DVR2016
has the most user friendly GUI (graphic user interface) of any system available
today. All activities can be achieved by simple clicks of the mouse and menu
tabs. There are no special operating functions that need be learned or referred
to in the manual.
- The CPT-DVR2016
is a Pentaplex machine. It is able to carry out 5 activities simultaneously,
viz. Watch, Record, Playback, Remote View and Download To Backup. Not all
manufacturers can achieve this.
- Every unit
has a modem and LAN card installed allowing remote viewing via phone line,
Internet or local area network. With some other manufacturers this is a chargeable
option.
- The software
for remote viewing of the CPT-DVR2016 is supplied free with every unit. With
some other manufacturers this is a chargeable option.
- Images are
downloaded in a common jpeg format. They should therefore be viewable on most
computers. This is important if a picture of an incident need be supplied
to the authorities. Every image has a Chained Fingerprint Encryption. It will
be evident if any image has been edited or changed.
Service and
Support
Unlike many of
its competitors, this machine is assembled from standard parts which can be
purchased at any computer store. The two great advantages are first that it
makes for very good cost performance, as all the economies of scale come to
bear, and secondly parts for repairs are readily available, and inexpensive.
This is not to say that Burtek will not warrant the product, or course we do
with a full three year warranty, it just means that the customer will not have
long waits and high parts costs for not warranty repairs.
Close
This Window