Posts Tagged ‘ night vision infrared cameras’



Office Security Cameras

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Thursday, April 12th, 2012

Office Security CamerasDo you need an office security camera? These cameras can greatly enhance the security of any office. Do you fear who may be entering the office complex without your permission? Do you need to restrict the access of certain rooms within the building? Do you need to know when deliveries are made to the business even when you are not there? If you answered yes to any of these questions, then you may have questions about what type of security camera is the right one for your office.
Office Box Security Cameras

The most popular office security camera is the box security cameras. These box security cameras are inexpensive to purchase, inexpensive to install and relatively easy to operate. The office owner will need to determine the correct lens for each camera. For example, these cameras can be installed with infrared lenses to take photos in low light conditions. These cameras are limited in that they will only take photos in one direction. It may take several cameras to cover an entire building or even just one room. The box office security camera can be connected to a computer for monitoring. The box security camera is not waterproof, but can be installed inside waterproof housing. It is important to look for a box camera with large frames per second rate. Currently the largest frame per second rate is 30. A great additional factor is to buy a box security camera with a built-in SD card. This will provide backup should your network fail. The office owner will also need to consider the available bandwidth required by more than one box camera. Look for a box security camera with 5 megapixels to deliver the most clarity. The higher the megapixels the lower the frame per second rate will be. Box security cameras are among the largest cameras on the market today. Their size may deter some thieves.

Office Dome Security Cameras

Another popular option for office security cameras are dome cameras. These dome cameras are available for purchase in various colors to match the décor of the office. Office owners who need cameras outside can purchase waterproof models. Office dome cameras are available with interchangeable lenses so that they can be used in different circumstances. Like the box camera, when purchasing an office security dome camera consider buying a camera with a SD card. This will provide additional evidence should the authorities request it. Also look for a high frame per second rate and a camera with at least 5 megapixels. Make sure that you have the funds available for the higher amount of bandwidth required by multiple cameras. Since these cameras are circles, it is impossible for those in an area protected by a dome camera to tell exactly where the photos are being taken. The most popular of these dome cameras feature a frame per second rate near 30. Dome cameras often look better than box cameras in high end offices.

Office Bullet Cameras

Some offices prefer the bullet cameras. These cameras are available in large or small sizes. Since these cameras are waterproof, they make an outstanding option if installed to protect the outside of an office building. Like dome cameras, these cameras feature interchangeable lenses. Make sure to purchase the right lens to use in the particular circumstances. For example, if you have a room that is kept dark most of the time, the right lens would be an infrared lens since it can operate with limited light. On the other hand, if you will be installing the office bullet camera in bright sunshine, you may want to consider a lens with a special coating that helps to take great photos in these conditions. Understanding the differences in lenses will assure your maximum satisfaction.

Office Spy Cameras

Some offices prefer to use spy cameras. These spy cameras can be placed throughout the office and are disguised to look like normal office items. One popular option for many offices is clock spy cameras. Make sure that these cameras operate silently. Spy camera pens are a great option for employees that carry supplies outside the office are spy pens. It is vital to buy a spy camera that will work with the available light. Many thieves are very aware of the sound these cameras make so make sure that you buy a camera that operates silently.

Office PTZ Cameras

The last option is the most popular with most office owners. The pan, tilt and zoom spy camera provides many alternatives to the office Office Security Camerasowner looking for the most for their money. These cameras can be operated remotely to take the best photos. For example, the camera can be placed outside a door and operated remotely to pan an entire hallway. These cameras can also be tilted to see items at different heights. They can be tilted up to clearly see a person’s face. They can also be tilted down to see a package that has been left in front of a door. These cameras can also be used to zoom into a situation to see the details more clearly. However, office owners need to realize that the pan, tilt and zoom camera requires 24 hour a day, seven days a week to be the most effective. These cameras require the most elaborate wiring of any security camera. They also require the most power.

Major Factors to be Considered

Software

When looking to purchase an office security camera, there are several factors that apply to all security cameras. Remember that each camera will require software to operate. The software needs to be integrated with other software already in use in the office. Some cameras operate on Mac systems, while others do not. Be careful and buy a camera that will operate on the current system.

Power

Security cameras require electricity to operate. Think about how you will integrate the security system into the existing power grid. It may be necessary to hire an electrician to revamp the electrical system with new plugs. Make sure to meet city and state codes when making these changes.

Color

Cameras are available in different colors. Buy a color that will match the décor of your office. Also the power cords and cables come in different colors. Again, purchase a system that will integrate with your existing décor. Some office owners prefer to make the cameras stand out as a deterrent to crime. This is a personal decision that must be weighed carefully.

Monitoring

Security cameras are only as good as the people monitoring them. Make sure that you assign specific people the responsibility to monitor the cameras. Develop a contract that spells out exactly what you expect of your monitoring people to avoid any misunderstandings. Some offices prefer to hire a professional company to monitor the cameras.

Lenses

Security cameras will only catch the crime if the action is caught on the lens. Therefore, it is important to consider what type of camera and lens is right in each circumstance. Most security cameras will only cover 25 percent of a room. Those that cover a whole room often have very distorted photos with minimal detail. Different cameras require different lenses. Make sure to buy a lens that is ideal for the circumstances you intend to install the office security camera in.

Frame Rate

Security cameras come with different frame rates. Buying the largest frame rate available enables a great fluid picture that is easy to watch. Buy a camera that allows the user to install an SD card. It is a great backup should the electricity fail. Consider the available frame rate for the entire system. It may be necessary to install new computers to monitor your office security cameras successfully.

Megapixels

The larger the megapixels available are on the office security camera, the larger the photo can be enlarged. This will allow more details to be seen. Lower megapixels cameras often have trouble, known as noise, when the photo is enlarged. The ability to enlarge the photo will assist the authorities and you in seeing details that might otherwise be missed.

Television Line

Analog office security cameras will have a television line number. This number needs to be near 700. The larger the number the crisper the photo will be. Crisp photos enable the viewer to see the details clearly. A lower number may make it impossible to tell who is standing at the door or details about the package that has just been left.

The security of an office often depends on the use of great security cameras. They are an important part of any office security system. First, choose the right type of security camera for your office by choosing the right television line, megapixels and frame rate. The safety of all people who work in the office may depend on your security system. The property may depend on the quality of your security cameras. Make an informed decision now before it is too late. You may never have another chance.

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Infrared Wireless Camera

Written By:
Wednesday, June 15th, 2011

You may be wondering what an infrared wireless camera is.  It is a digital video camera that can capture digital video images in total darkness and does not require a coaxial video transmission cable run from the camera to the Digital Video Recorder or DVR.

Let’s start at the beginning.   A digital video security and surveillance system normally has three basic parts or components:  The camera(s); the DVR; and, the monitor(s).  It’s the camera that we are interested in so lets talk about how it works and what it does.

Unlike the infrared wireless cameras, most cameras need some sort of connection wire to send their video data over to the DVR.  Most often, this wire is actually RG-59 coaxial cable.  The signal originates at the camera end and terminates at the DVR end.  There is nothing wrong with this method; in fact this is the way most security systems are set up.  However, if you want to avoid running all that cable, then you may want to consider a wireless camera.

The wireless camera helps to avoid all the time and effort it takes to run the RG-59 cable.  Imagine that you want to install a gate camera at the end of a very long driveway.  Can you imagine the cable run through your house all the way out to that camera at the gate?

On the other hand an infrared wireless camera has its own on-board transmitter and built-in antenna so that it can send the video data to the DVR in radio frequency format instead of cable.  Actually the camera sends the radio transmission to a corresponding receiver made specifically for this purpose.  The receiver is then connected to the DVR by a coaxial cable and relays the camera’s signal to the DVR via this short cable.

The camera at this point is not truly 100% wireless.  All cameras must have some sort of power supply and so a power supply line must be run to the camera.  In this situation, this can still be a bit of an advantage at making installation easy because a single plug-in type transformer, made specifically for the camera can be plugged in to an outlet nearest the camera reducing the power supplies’ cabling run.

A truly infrared wireless camera can be achieved with very little effort.  This is probably the most desirable configuration because there are absolutely no wires or cables that need to be run from the DVR to the camera.  There are many infrared wireless cameras available from Security Camera King that obtain their power supply from on board batteries.  This makes the camera truly wireless.

When purchasing a wireless camera, make sure you know how far (usually in feet) that your camera will be separated from the receiver.  Most cameras employ a wireless transmission type where the maximum range is stated based on Line Of Sight or LOS.  That means that a camera with a wireless range of 300 feet has that range based on LOS.  If there are any objects between the receiver and the camera you could loose the signal entirely, although this is rare.  Generally, depending on the amount and material the radio signal must go through it simply reduces the camera’s range.

The other half of the infrared wireless camera, that is the infrared portion, allows the camera to see in total darkness.  The camera lens focuses the field of view onto a small (usually 1/4 to 1/3 inch square) sensor that when struck by light energy emits electrical impulses that can be measured and used to create an electronic reproduction, or video footage.

The chips that are used are the Charged Coupled Device (CCD) and the Complementary Metal Oxide Semiconductor (CMOS).  Both the CCD and the CMOS have the inherent ability to react not only to the visible light spectrum but they can also see the near red infrared light spectrum (human eyes cannot see this type of infrared radiation–simply put it is invisible to us).

An infrared wireless camera is usually supplemented with an array of InfraRed Light Emitting Diodes (IR LEDs) positioned around the lens.  This is like using a floodlight on a non-infrared camera.  Additional illuminators can be purchased to extend the distance of the camera.

An infrared wireless camera not only has a transmission range, but it also has an Infrared range distance.  Make sure to check the infrared range on the camera before purchasing it as well.

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