by Richard May
A video security system will be used both at home as well as at commercial buildings in order to monitor the movement of people within those places. These act as both deterants and also evidence as they can record images that can be played back if anything ever is broken into.
One of the main features of an ADT home security system is the monitor. This will be used to display the pictures that have been recorded by the other main feature of the system - the security camera. The camera will be connected by hard line wires or wirelessly.
It is worth noting that the usual screen resolution of a home security monitor will be a lot clearer and sharper than the usual one of a television. You should also look for places where intruders may be able to enter your house and place security cameras in positions that cover these spots.
These cameras can be connected to the monitors using a hard wire or wirelessly. There are various advantages and disadvantages of both. Also be sure to place the cameras so that they are not blocked by any household objects and be aware of the cameras position when adding new items and furniture to the home.
It may not be needed in most homes, but think about whether you will need a system that uses hard wires or a wireless network. If you decide to use a wireless network then you will pay a little more money but it will be a lot more convenient to install the cameras around the house. Obviously there are no problems with fitting wires around the current furniture.
The security camera is really the most important part of the whole home security system. Because of this, you will have to note that there are certain things you need to take into consideration when choosing which cameras to use. Fortunately ADT Security advisors can help you with this and give you tips and advice.
Prior to going out and buying a new ADT camera system, take some time to take a look at your home to see how many cameras you may need. Look at potential places where a burglar may enter the house and count how many cameras you may need. Will you need the cameras to record sound as well? If you are not sure then ask an ADT advisor.
A main part of the entire security system in the coaxial cables that will transmit all of the video images from the cameras to the monitors. A switcher is used to connect together two or more video cameras to a central monitor. But you can get more advanced switchers which allow you to connect in alarms. The reason for doing this is that the corresponding camera is locked whenever the alarm is triggered.
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May 29 2009 | home security | No Comments »
by Adam Togo
Analog security cameras, known as CCTV, comes in two forms classified by the build of the image sensor. They are either CMOS based, which is cheaper and produced lower quality images than the CCD camera.
To determine the best security camera for your needs, you must first determine what your needs are. A camera that can single out faces in an outdoor crowd on a cloudy day is very different from a camera that is used to monitor general activity inside an office lobby.
There is a difference in cameras designed for indoor versus outdoor use. There are additional durability standards that the camera would need to ensure it survives the harsh conditions, unlike an indoor security camera.
Other things that will directly impact your buying decision include your budget, for the entire system as well as per individual security camera, as well as the size of your entire security system and the number of cameras you required. The number of cameras you require depends on the number of areas you wish to monitor.
One of most important consideration is lighting of the area you want to monitor. If you plan on installing an outdoor security camera to protect your detached car garage from thieves but buy a high quality day camera that isn't designed for low light environments, your video feed will be different shades of black frames.
In low light settings, black and white cameras are the best. They have lower light requirements to deliver image quality than regular colored cameras. There are also cameras that can sense the lighting levels of the enirvonment and transform from a day camera to a night camera.
There are also dedicated night vision cameras for true low light recording. The minimum amount of light required for the camera to record properly is measured by the LUX rating. A camera of lower LUX rating requires less light and a rating of 0 means the camera is designed for complete darkness.
When it comes to the sharpness of the image, this is measured in resolution. Higher resolution cameras will produce higher quality images. Entry level cameras will have resolutions of about 330 lines and up to 400 lines in higher end cameras.
There are more advanced monitoring systems that allow for panning and zooming the camera but for many a standard recording device will suffice. Most people will use a digital video recorder, or DVR to record directly onto a harddisk.
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May 26 2009 | Security Cameras | No Comments »