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What Camera Video
Stream would you select for your CCTV
Architecture:
a.
Why would you use MPEG4 and not the
MJPEG.
b. MPEG4 is a very
low resolution video stream and you
will not be able to see clearly facial
features or have clear imagery after
play back. You should always test the
2 methods and choose what you like.
Most likely you will not accept MPEG4.
c. NOTE: For your information,
MJPEG will require 4 times the storage
capacity of the MPEG4.
d. If for you feel
that MPEG4 is an acceptable quality
video stream, thus we will not need
to go to higher quality IP cameras 1
or 2 megapixels and just settle for
the .05 megapixel camera or analog cameras
of 480TVL (as a minimum).
e. Please note, when
you spend the money for higher resolution
cameras and you use low resolution video
stream, it kind of kills the purpose
of buying and using higher quality cameras.
f. In my opinion, you
should always use MJPEG Video Stream
and no the MPEG4.
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What Camera Resolution
would you select for your CCTV Architecture
Storage Bank:
a. Example; If the
client CCTV design contractor company
has proposed several types of cameras
ranging from IP and Analog and has mixed
range of DVRs with encoders and decoders
as well as NVRs for their IP cameras,
than please stop using this contractor
and find a more professional contractor.
b. Because of the complexity
of some of the CCTV design architecture,
it is advisable that you only use 2
or 3 types of cameras for the project.
This will make repairs, spare parts,
communality of installations more suitable
and reliable then having many types
of cameras. SOFAB usually advises to
use 550 t 600 TVL Analog cameras and
for IP camera architecture with only
3 types of IP cameras ranging from 0.5
to 2 megapixels with IR and capability
to view in Zero Lux (view in total darkness).
c. For an IP camera
installation architecture, in my opinion,
you should always select 1 megapixel
(1280x1024) for the Camera resolution.
This gives a good average between the
0.5 and the 2 megapixel IP camera range.
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- Frames per
second and storage capacity for their
CCTV:
- Most Consumers request a lower
then the basic required storage
capacity.
- One type or maximum 2 types
of camera selections:
- As a high security facility, it
is always recommended to maintain
the single type camera or maximum
2 types of cameras.
- This maintains a commonality between
the cameras and simplicity in repair
and maintenance.
- Most maintenance personal can
easily maintain a single type with
minimum technical knowhow.
- This will safe guard you from
keeping a large number of spare
parts that will be 100% guaranteed
to be mixed with other camera parts
and thus resulting in delays and
loss of surveillance time.
- A single type camera selection
is used by many of our high profile
clients here in Saudi Arabia. This
resulted in a quick change over
with new cameras in case of fault
or failures. In most cases it takes
about 15 minutes to do the changeover.
- The more complex a camera, the
harder they are to maintain and
thus require a huge loss of time
since they all have to be returned
to our factory for repair and adjustment.
- Priority is to maintain a sophisticated
technical team with proper tools
that enable them to maintain all
equipment in-house with no time
loss.
- Thermal Cameras:
- Thermal cameras are becoming absolute
because of their faults and failures.
A heat Suit is now readily available
in the market and could cause a
sever hazard to the Thermal Camera
as the camera becomes blinded by
the thermal suit and will not see
a heat signature return.
- Many of the sophisticated thermal
suits can never be detected by the
Thermal Camera and render them ineffective.
Thus they have included an optical
camera along with the Thermal Camera.
A customer who purchases such a
camera will not benefit because
of the following:
- The Thermal camera is ineffective
against camouflaged thermal
suits.
- The Optical camera used along
with the Thermal is considered
as an effective tool in day
light hours or illuminated areas
during night hours. Thus the
optical lens will not be operable
in total darkness as they will
rely totally on the Thermal
part of the camera and thus
fail to secure the facility
in question.
- SOFAB latest camera provides PTZ 480
TVL SONY High resolution lens and 36
times zoom for day and night viewing.
Incorporated in to the frame of the
camera, is a double IR system, one for
short range of 100 meters viewing range
and the second is for 800 meters viewing.
With this camera, a person can be indentified
from 300 to 500 meters
- SOFAB Most sophisticated camera provides
PTZ 540 TVL with very high resolution
lens and 60 times zoom for day and night
viewing and with a special low light
enhancement system. It has a very powerful
IR Illuminator with 800 meters visibility
and more. With this camera, person facial
features can be indentified from 800
in total darkness and through haze and
light fog.
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Are there any quarries
while going for site inspection to get the
information(distance and control room location).
Are there any points I should notice/observe
during my visit?
Points to be aware of while
you are doing a site survey:
- Please consider your eyes as the
camera lens. Look for any:
- Possible Camera View Obstruction,
trees, buildings, mountains
- Please consider the excavation obstruction.
Look for any problems that we may face
during excavation like:
- Trees, Drive Way, Building, gates,
or anything that could cause a problem
when we go to do the installation.
The airport is
asking if the camera can be viewed from
two location (control room, and air traffic
control tower) at the same time. Please
let me know if you need any information
to answer this question.
Note: they have a fibber optic cable connecting
the two rooms.
- To answer the questions about seeing
the cameras from 2 locations, please
ask them to send you the exact distance
from the (control room, and air traffic
control tower). With this information,
we can probably solve the problem for
them. In this case, we will ONLY use
Cat6 UTP Type Balden brand.
- The fiber network they have is not
part of our system and we are not able
to connect to an unknown system. If
they need to use their Fiber System,
they will have to contact their Fiber
Optic Provider and they will be able
to do this for them.
- If they Want us to use their fiber
optic cables, we will be able to
do so, but 3 things must happen
for this to work.
- Provide us with the Fiber
Cable Technical information
like:
- Is it a Single Mode or
Multi Mode,
- Number of Fiber Strands.
- Type of Fiber Optic Cable
Jumpers they are using
- Do they have a professional
Engineer who can do the
Fiber Fusion (Fiber Splicing
and rejoining)
- Do they have the Fiber
Fusion Machine.
- Additional Equipment is required
to be added to the Quotation
Proposal (Additional Cost).
- This means that their Fiber
cable will only be used for
our CCTV Camera dedicated USE.
No other services can be added
to the existing Fiber Cable.
- If they like, we can or they
can put new Fiber Optic cable
per our requirements and we
will bring our additional equipment
for the connection.
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There are 2 Important points
we need to know before preparing the CCTV
Cameras for a Client's Palaces:
- We need the general layout of the
cameras at the Palaces so we can determine
how many Encoders we need to propose,
because if they do not give us this
information, we will have to propose
one encoder per camera and this can
be very expensive. So they have to give
us distances on the layout as a general
reference.
a. If they gave us a general layout
on paper, we can put several cameras
on a single Encoder and this can save
them so much money. Note, we can put
up to 4 cameras on a Single encoder
or 8 cameras or 16 cameras (4 or 8 or
16 Encoder will operate on a single
fiber cable). When we do this, we can
save them money by reducing the number
of encoders and also reduce the number
of fiber optic cable used at site. This
can mean the saving of about 30% value
of the project.
- We urgently need the location of control
room and sub control room as this will
also enable us to use a LAN to connect
them if they are close. If they are
far, we will have to use Fiber cable.
The difference of equipment is really
too much for a generic proposal. Thus
please give us the proposed control
room position on a general map layout.
Please give distances on the layout
as a general reference.
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