One of the first decisions to make when you’re looking at CCTV systems
is whether you need a visible system or one with a hidden security
camera or cameras. An obvious surveillance camera has its place. Among
other things, it serves as a deterrent to bad behavior. People are far
less likely to shoplift, burglarize or vandalize if they know there’s a
CCTV camera trained on them. If your intent is to discourage those
things, a visible camera is the obvious choice.
On the other
hand, if your intent is to catch someone engaging in bad behavior, you
won’t do it with a security camera in plain sight. In that case, you
should be looking at CCTV systems with hidden cameras. You’ll find
plenty of these on the market, from the ubiquitous “nanny cam” that can
be hidden in a wide variety of household objects to complete CCTV
systems with cameras set into recessed ceiling domes or behind mirrors
and walls. These tips can help you find the right surveillance camera
for your needs.
Quality First
There are lots of “gadget”
security cameras on the market. You know the type: pen cameras that fit
in your pocket, teddy bear cameras and the like. They’re inexpensive for
a reason: they’re cheap.
If your intent is to capture evidence of wrongdoing on camera, you need
to pay attention to quality. Look for a CCTV camera that delivers good
quality images above all else.
Fit to Your Needs
Will your
camera remain in one place permanently? Consider a wired CCTV camera
that can be hidden behind an object or wall. A wired camera offers one
distinct advantage over wireless cameras: they’re not prone to
interference from other electronic frequencies. If you don’t want to run
wires, look for a wireless security camera that can transmit to a
nearby computer or DVR.
Hide-ability
Consider where you’ll
be placing the surveillance camera when choosing the size, shape and
casing. You can choose from small cameras that you can hide inside or
behind objects or cameras that are fitted into casings that look like
everyday objects – for example, no one would think twice about a second
smoke detector affixed to the ceiling or high on a wall. Do keep in mind
that many hidden cameras are meant for indoor use only, so if you’re
buying a camera for outdoor use, your choices will be considerably more
limited. On the other hand, your choice of hiding places may be much
wider.
CCTV systems can provide open security, surveillance or
both. When choosing cameras for covert use, consider where, how and why
you’re using them to help you pick the best security camera for your needs.
Monday, August 26, 2013
Monday, August 12, 2013
Connecting CCTV Systems to Your TV
When it comes to security and surveillance, CCTV systems
are the obvious choice for most property owners, even homeowners. A
CCTV camera typically connects to a security monitor with a BNC (British
Naval Connector) cable. These security monitors can be pricey, and
while they do deliver high-quality images, they may be overpowered for
the typical homeowner. It’s not difficult to connect a single security
camera to a TV, but did you know you can connect entire CCTV systems up
to a single television? You don’t need an expensive security monitor to
keep an eye on your property. You can connect 4 or more surveillance
cameras using an adapter and a video switcher. Here’s how.
You’ll need a BNC-to-RCA adapter, an RCA male to male cable and a video switcher.
Connect the output of each security camera to one of the inputs on your video switcher.
Connect the adapter to one of the outputs on the video switcher. You’ll use the second output, if the switcher has one, to connect a DVR to record your feed, or to display the video feed to another television.
Connect one end of the RCA cable to the adapter and the other end to one of the video inputs on your television. You’ll generally have a choice of Line In or several AUX lines.
That’s it. Your CCTV system is now physically connected to the television. From here, there are a few steps involved in setting up the video feed. Turn on the video switcher, then turn on your television.
Turn on your television and bring up the onscreen menu. Select the video input to which you connected the video switcher and follow onscreen prompts to set up the amount of time the switcher displays the view from each security camera. You can also choose to view just one camera.
Remember in terms of the actual recording that the DVR will only record the images that are shown on your screen and set up your dwell times accordingly.
This is a quick and dirty way to bring all of your security camera equipment together to mimic basic CCTV systems. It will work with just about any modern television and many older ones that have an RCA jack. A CCTV security system helps make your home, your belonging and your family safer. Whether you choose to monitor one camera or many, this simple trick will make it easier for you to keep an eye on your home.
You’ll need a BNC-to-RCA adapter, an RCA male to male cable and a video switcher.
Connect the output of each security camera to one of the inputs on your video switcher.
Connect the adapter to one of the outputs on the video switcher. You’ll use the second output, if the switcher has one, to connect a DVR to record your feed, or to display the video feed to another television.
Connect one end of the RCA cable to the adapter and the other end to one of the video inputs on your television. You’ll generally have a choice of Line In or several AUX lines.
That’s it. Your CCTV system is now physically connected to the television. From here, there are a few steps involved in setting up the video feed. Turn on the video switcher, then turn on your television.
Turn on your television and bring up the onscreen menu. Select the video input to which you connected the video switcher and follow onscreen prompts to set up the amount of time the switcher displays the view from each security camera. You can also choose to view just one camera.
Remember in terms of the actual recording that the DVR will only record the images that are shown on your screen and set up your dwell times accordingly.
This is a quick and dirty way to bring all of your security camera equipment together to mimic basic CCTV systems. It will work with just about any modern television and many older ones that have an RCA jack. A CCTV security system helps make your home, your belonging and your family safer. Whether you choose to monitor one camera or many, this simple trick will make it easier for you to keep an eye on your home.
Monday, July 29, 2013
Helpful Tips for CCTV Systems How (and Why) to Back-focus a CCTV Camera
One of the biggest problems encountered by people who DIY install their own CCTV systems
is inconsistent focus. The most common iteration of the problem is that
the image is in perfect focus in daylight, but at night, all you get is
a blur. It results from a basic technical detail: during the day – or
in bright sunlight –the lens iris is closed, giving you a very wide
depth of field. As the light level drops, the iris opens to bring in
more light. When that happens, the depth of field is decreased and
images at most distances will be blurred. There is a way to combat this
tendency: back-focusing your CCTV camera with the iris fully opened to
provide the optimal focus for all conditions. Here’s how you do it.
Back-focusing a Fixed Lens Security Camera for CCTV Systems
Determine the distance from the camera to the scene you want to capture with the surveillance camera.
Set the physical focus of the lens to the full infinity position.
Insert a neutral density filter. This iris will open completely to allow more light and increase the depth of field to give you the most precision with your adjustments.
Set the lens focus to near and the zoom to wide.
Aim the CCTV camera at a high-contrast object that is the same distance from the camera as the scene you’ll want to capture when the camera is in place.
Turn the lens body until the object is completely in focus.
Remove the neutral filter and install the camera in place.
You should now be able to focus the camera manually to get the precise focus you want – and all of your scenes will remain in focus regardless of the lighting conditions.
Higher end CCTV systems have security camera choices with auto back focus, so this procedure is not necessary. If you’re running discount CCTV systems with a cheap surveillance camera option, you may need to fiddle with it a bit to get the settings right for optimal focus.
Need more help with setting up your CCTV camera for good focus? Most professionals who sell and service CCTV systems will be happy to answer simple questions and offer advice. And of course, if you want to be absolutely certain that everything is properly installed, you can always hire a pro to install your security/surveillance system and not have to worry about it at all.
Back-focusing a Fixed Lens Security Camera for CCTV Systems
Determine the distance from the camera to the scene you want to capture with the surveillance camera.
Set the physical focus of the lens to the full infinity position.
Insert a neutral density filter. This iris will open completely to allow more light and increase the depth of field to give you the most precision with your adjustments.
Set the lens focus to near and the zoom to wide.
Aim the CCTV camera at a high-contrast object that is the same distance from the camera as the scene you’ll want to capture when the camera is in place.
Turn the lens body until the object is completely in focus.
Remove the neutral filter and install the camera in place.
You should now be able to focus the camera manually to get the precise focus you want – and all of your scenes will remain in focus regardless of the lighting conditions.
Higher end CCTV systems have security camera choices with auto back focus, so this procedure is not necessary. If you’re running discount CCTV systems with a cheap surveillance camera option, you may need to fiddle with it a bit to get the settings right for optimal focus.
Need more help with setting up your CCTV camera for good focus? Most professionals who sell and service CCTV systems will be happy to answer simple questions and offer advice. And of course, if you want to be absolutely certain that everything is properly installed, you can always hire a pro to install your security/surveillance system and not have to worry about it at all.
Monday, July 8, 2013
Tips for Installing CCTV Systems in Bars and Music Clubs
Are you considering the use of a CCTV security system in your music
club, bar or live music venue? CCTV systems can provide layers of
security that can help you pinpoint trouble before it starts, not to
mention, defend yourself in case your business is accused of wrongdoing.
If you’re been looking at CCTV systems
for the purpose providing security for your live music venue or dance
club, consider these tips to help you decide how and where to locate
each security camera inside and outside your premises.
Cover Entrances and Exits
Entrances and exit points are among the most important areas to keep under surveillance, especially outside business hours. An obvious surveillance camera pointed at the doors will help discourage vandals and burglars who might otherwise attempt to break in.
Spare a Surveillance Camera for the Door
Don’t take chances with bouncers “forgetting” to check ID when a hot babe wants in. A CCTV camera at the admission door can capture everyone entering as well as their IDs. Keeping a record of the ID checks at the door can help ensure that the bouncers stay on task and don’t let anyone underage slip by. If someone does manage to slip in on a fake ID, you’ll have a record proving that your crew did their due diligence.
Watch the Bar
Place at least one surveillance camera where it can pick up what’s going on behind the bar. Bevinco, a liquor inventory control service, estimates that shrinkage – losses due to waste, spillage and theft of your liquid stocks – can eat up to 30% of your bottom line. That’s a lot of spilled beer. It’s not all due to theft, of course – a CCTV camera will help you pinpoint inefficiency, clumsiness and drinks “for friends” as well as outright theft. One of the best uses for CCTV systems in the hospitality industry is to keep an eye on staff and make sure they’re not stealing from the company.
Cover Likely “Hot” Spots
Every bar has some out-of-the-way areas where bad things are likely to happen. It may be the pool room in the back, the alley beside the back door or a sheltered alcove on the far side of the stage, but it’s out of the line of sight for most of the staff most of the time, making it an attractive place for people who are up to no good. Aim a security camera at the dark corner or cover the pool room with a monitor somewhere it can be watched so that you can stop trouble before it starts.
CCTV systems can help protect nightclubs and other entertainment venues as long as you know the best places to locate the cameras. Even if you end up installing the system yourself, consider consulting a professional to help you draw up a good plan to cover your place of business.
Cover Entrances and Exits
Entrances and exit points are among the most important areas to keep under surveillance, especially outside business hours. An obvious surveillance camera pointed at the doors will help discourage vandals and burglars who might otherwise attempt to break in.
Spare a Surveillance Camera for the Door
Don’t take chances with bouncers “forgetting” to check ID when a hot babe wants in. A CCTV camera at the admission door can capture everyone entering as well as their IDs. Keeping a record of the ID checks at the door can help ensure that the bouncers stay on task and don’t let anyone underage slip by. If someone does manage to slip in on a fake ID, you’ll have a record proving that your crew did their due diligence.
Watch the Bar
Place at least one surveillance camera where it can pick up what’s going on behind the bar. Bevinco, a liquor inventory control service, estimates that shrinkage – losses due to waste, spillage and theft of your liquid stocks – can eat up to 30% of your bottom line. That’s a lot of spilled beer. It’s not all due to theft, of course – a CCTV camera will help you pinpoint inefficiency, clumsiness and drinks “for friends” as well as outright theft. One of the best uses for CCTV systems in the hospitality industry is to keep an eye on staff and make sure they’re not stealing from the company.
Cover Likely “Hot” Spots
Every bar has some out-of-the-way areas where bad things are likely to happen. It may be the pool room in the back, the alley beside the back door or a sheltered alcove on the far side of the stage, but it’s out of the line of sight for most of the staff most of the time, making it an attractive place for people who are up to no good. Aim a security camera at the dark corner or cover the pool room with a monitor somewhere it can be watched so that you can stop trouble before it starts.
CCTV systems can help protect nightclubs and other entertainment venues as long as you know the best places to locate the cameras. Even if you end up installing the system yourself, consider consulting a professional to help you draw up a good plan to cover your place of business.
Monday, June 24, 2013
Five Places to Put a Security Camera with CCTV Systems
The success of CCTV systems
depends, in large part, on proper security camera placement. After all,
the surveillance camera and security camera you choose are the eyes of
your security system. You want them pointed in the right direction to
get the information, images and date you need. These are five of the
places for security camera placement suggested by law enforcement and
loss prevention specialists.
Front Door
The
front door of the building is the most important place to locate a CCTV
camera. Position it so that it will capture the faces and up to 3/4ths
of the full body of all persons entering the building. The front door
camera in a security building will allow you (or your tenants) to view
who is at the door without opening it. This is especially valuable if
you have children who are home alone after school. They never have to
open the door to check who is ringing the doorbell.
Rear or Side Doors
Combine
rear and side door cameras with a front door security camera to track
all people entering and leaving the building. A CCTV camera record for
each entrance and exit can be invaluable in situations where you need to
verify who is inside a building and who has left it.
Somewhere Visible
One
of the biggest benefits of CCTV systems is their deterrent effect on
crime. Most criminals don’t want to perform for the security camera, so
put an obvious surveillance camera in a very visible spot – and back it
up with a sign warning that the property is under video surveillance.
Near the Driveway/Garage
If
your driveway is out of sight of the house, a security camera can serve
as a deterrent to thieves and vandals, and let you keep an eye on your
wheels. It will also discourage teenage kids from taking the family car
for a spin when mom and dad are asleep.
Around the Swimming Pool
Add
a layer of protection around your swimming pool by covering it with a
surveillance camera. A motion-activated security camera will turn on
only if someone enters the pool area. Combine it with a motion-activated
alarm to warn you if a child or neighborhood kid has entered the pool
enclosure unsupervised. A CCTV camera at the swimming pool is more than a security enhancer. It could, quite literally, save a life.
Choosing
the right place for security cameras makes CCTV systems more effective.
Before you shop for cameras, figure out the best places for your
surveillance. It will help you choose the best cameras for those
positions.
Monday, June 10, 2013
Choosing the Right Surveillance Camera for CCTV Systems
CCTV systems
work with many different types of surveillance camera types. There are
hidden cameras, pin hole cameras, network cameras, analog cameras,
digital cameras, PTZ cameras, dome cameras and so many more that just
looking at a catalog can make you dizzy. How do you choose among them
all to find the best CCTV camera for your needs?
The
first step is to actually consider your needs. Each type of CCTV camera
is designed to do a specific type of job. A surveillance camera, for
example, is designed to capture footage to gather evidence, identify a
criminal or capture an event. They tend to have higher resolution and
deliver higher quality video, but are more expensive. A security camera,
on the other hand, is meant to alert you to what’s happening around you
in the now. They’re the right choice if you’re more concerned with
being alerted to possible threats (including shoplifting and theft) so
that you can intervene in some way. The video quality doesn’t have to be
high, but mobility becomes more important.
Other factors you’ll need to consider when choosing cameras for CCTV systems include questions such as these:
Will the Security Camera Be Mounted Outside?
In
that case, you’ll want a camera with weatherproof housing to protect it
from the elements, and with a cage to protect it from vandals who’ll
want to disable it before getting into mischief.
Do You Want to Deter Crime?
You’ll
probably want to choose an obvious security camera, one that mounts in
plain sight and makes it clear that the premises are under surveillance.
Do You Want to Record Possible Crimes?
If
your intent is to catch criminals in the act, you’ll want to choose a
surveillance camera that can be hidden. There are dozens of styles of
surveillance cameras, ranging from pinhole cameras to nanny cameras and
more.
Do You Want to Access Your Camera Feed Remotely?
Network
cameras, also known as IP cameras, are set up on a network with a
network video recorder and allow you to access the camera’s feed from
any device that can connect to the network. They can present security
risks from hackers, but the convenience may outweigh the risk.
The
security camera you choose will make a big difference in how well
various CCTV systems will serve your needs. Take the time to consider
exactly what you expect when you install a security system and choose
the CCTV camera that will serve your needs the best.
Monday, May 27, 2013
Understanding Cameras for CCTV Systems
Choosing the right security camera for CCTV systems
isn’t an easy process. You’ll have to take into account the technical
specifications, the application and its requirements and any physical
challenges the installation site may present. There are hundreds of
surveillance camera options available today, and the ever-evolving
technology adds new choices to the mix every day. Making an informed
decision about the right CCTV camera for your system can be a challenge
unless you understand the basics of CCTV systems and CCTV camera
technology. This overview provides basic information to help you in the
early planning stages of your CCTV system.
The
center of CCTV camera technology is the Charge Coupled Device sensor,
which converts light into an electrical signal. That signal is processed
by the camera’s electronics and converted to a video signal output. The
way that video signal is treated depends on the type of camera you
choose – analog or digital. CCTV cameras can be further subdivided by
resolution, color/monochrome and day/night cameras, and further still by
levels of performance.
Analog or Digital Security Camera?
Digital
Signal Processing (DSP) has increased the flexibility of security
cameras and enhanced the quality of the images produced by CCTV systems.
Until recently, analog was the camera type of choice because it
produced a good quality image at affordable prices. DSP technology has
brought digital security camera choices into the affordable range. A
standard DSP CCTV camera is relatively inconsistent, and provides more
consistent picture quality than most analog cameras, and is a good
choice for most CCTV systems. If you want better quality and more
flexibility, a premium DSP security camera provides lots of added
functionality, including a feature that evens out awkward lighting and
ensures crisp pictures throughout the course of the day.
Monochrome or Color CCTV Camera?
Color
security cameras are typically more expensive than monochrome (black
and white) CCTV cameras, but they’re not always the best choice for a
number of reasons. While it’s easier for humans to remember an image or
recognize a person when they see it in color, a color security camera
doesn’t do a very good job of recording in low-light situations. A color
surveillance camera is thus a good choice for store surveillance, which
will nearly always be in well-lighted situations, but a monochrome
security camera is a better choice for night recording or low-light
situations. In addition, you can buy monochrome cameras with infrared
sensitivity, which can be used with IR illumination for night
surveillance.
Choosing
the right cameras for CCTV systems can be a challenge. The more you
know about your intended use for the system, the easier it will be to
choose the right CCTV camera.
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