Home & Office
Ever wonder who’s wandering around your home or business when you are not there?
Or worse yet when you Are! We have a variety of surveillance cameras and DVRs
available. We can help you design a system that can give you peace of mind.
As with any imaging device the analog CCTV camera has a sensor which captures the
video image. The resolution of the sensor varies from 300 lines to 500 lines and up to
about 1000 lines. To get the video out of the CCTV camera into a recording and display
device, a single coax cable is used. To maintain compatibility with analog televisions
(and hence make it easier to use off the shelf products for display and recording), the
signal that comes out of the camera complies with broadcast television standards.
IP Cameras and HD Cameras Mega Pixel,
An IP/HD camera has an image sensor much like the analog camera. However, once it
has captured its image it transmits as “data” over the cable. That data is in the form of
compressed video frames sent over standardized networking protocol which is the low-
level language used to transmit data between computers in your home and the Internet.
What this implies then is that the IP/HD camera is like a little computer that you
connect to and access your video. Indeed, IP cameras are computers and run operating
systems not all that different from your PC. Where they differ is that they are fixed
function and their programming cannot be extended by the user. The fact that the
camera uses IP for transmission is not very important. What is important is that we are
no longer bound by the broadcast standard. In theory, we could now have any
resolution we want. You could as easily envision a camera with 10,000x2000 pixels as
you can 800×600.
So what is the extra resolution good for? For one, it gives you the ability to zoom into
the image much more without it turning into a soft and fuzzy image. Details like a
license plate will be much more recognizable at 2 megapixels, versus 0.5(500lines).
Turning the above upside down, you can choose to have the same resolution but have it
cover much wider area. The same 2 megapixel camera can cover the area of several
analog cameras and still have more resolution to boot. Of course, details matter as far
as lens selection and positioning but as far as pure resolution is concerned we may be
able to save costs in camera installation by using fewer cameras.
Note that sensor resolution is not the only metric for image quality. Lens quality and
low-light ability can impact effective resolution. For example a lens that is soft in the
corners is likely to offset the increased sensor resolution in that area. As the resolution
goes up it becomes progressively more important to pay attention to these details. Note
that just because two sensors are of equal size it does not mean that they perform the
same. This is where your "cost less" big box store system fails compared to a industrial
quality professionally designed system.
Pan Tilt Zoom Cameras
PTZ is an abbreviation for pan, tilt and zoom. This reflects the movement options of the
camera. Other types of cameras have digital zoom and pans into certain portions of the
image, with no physical camera movement.
An innovation to the PTZ camera is a built-in firmware program that monitors the
change of pixels generated by the video chip in the camera. When the pixels change due
to movement within the cameras field of view, the camera can actually focus on the
pixel variation and move the camera in an attempt to center the pixel fluctuation on the
video chip. This process results in the camera following movement. The program allows
the camera to estimate the size of the object which is moving and distance of the
movement from the camera. With this estimate the camera can adjust the optical lens
in and out in an attempt to stabilize the size of pixel fluctuation as a percentage of total
viewing area. Once the movement exits the camera's field of view, the camera
automatically returns to a pre-programmed or "parked" position until it senses pixel
variation and the process starts over again.
Indoor, Outdoor, Harsh Environment
Indoor cameras are made of a plastic or metallic cover and are designed for indoor
environment. They are economical cameras and are suitable for office & other
commercial indoor areas. Outdoor cameras are protected with environmental proof
casings and are suitable for outdoor harsh environments. Many outdoor cameras are
IP66 complaint. Vandal-proof housings are designed to discourage if not prevent
damage to the camera and are rugged against direct rain, sunlight, heat or kids with a
Day or Night mode: CCTV cameras work typically like any camera device that uses light
for capturing and storing video images. A night mode camera uses IR (Infare-Red) mode
and sends infrared light out to the object. The IR reflection is captured back in the
camera and a video image is formed. IR works even in pitch dark. However the image
will be in black & white and is limited to the range or power of the IR lights. Issues
solved by WDR (Wide Dynamic Range) of a camera is usually defined as the ratio of the
brightest point of an image to the darkest point of the same image. Imaging
applications often deal with situations in which lighting conditions are far from optimal.
In particular, these may include objects positioned against strong back lighting (a
window or door), in which case the objects details (face) become too dark, since the
camera adjusts itself to the high average brightness. In some situations there will be
many spots with steep gradations of brightness, which are hard to handle by standard
cameras. The WDR camera evens out these issues to lighten and enhance the darker
A hidden camera or spy camera is used to film people without their knowledge. The
camera is "hidden" because it is either not visible, or is disguised as another object.
Hidden cameras can be built into commonly used objects such as smoke detectors, clock
radios, motion detectors, ball caps, plants, and mobile phones. Hidden cameras may be
used for household surveillance and may also be used commercially or industrially as
security cameras. The proliferation and lower costs of video recording devices has led to
an increase in the use of hidden cameras for legitimate surveillance needs
Smart Phone, Android, iPhone®
Remote monitoring can be accomplished with most compatible Android, iPhone® based
Smartphones or tablets along with a High Speed internet connection at the DVR site and
at the viewing site. Using Wifi or your Cell phone’s network lets you keep replica watch on your
assets and employees. This is a quick way to check in when you get that call at 2 am
from the alarm company.