If you have given any consideration to home security, you have most likely thought of a closed circuit television monitoring system (better known as CCTV.)
What you will have with your CCTV system is at the least one surveillance camera, a variety of lenses (pan, zoom and infrared for night vision) to focus on certain areas of your grounds and home, and a VCR (video cassette recorder) which will make a permanent record of what the camera is seeing.
If you ought to decide you want to provide CCTV security in your home, you'll need to do at least one slow walk around your home, making notes as you go, about where you need surveillance, and what areas are the most vulnerable, and needing protection. While you certainly wish to focus on your house - the place where your family's safety is the primary concern - don't neglect to include garage, breezeway, in-law quarters, front and back yard, driveway, alleyway, or any outside fence or gate entrance.
You may want more than one camera in your house. This could be important if your home is big, for example, and you are regularly in one portion of the home while a babysitter watches your kids, or a housekeeper performs his or her duties. With the prevalence of home offices, this may be particularly essential, if you are in your office all day with the door closed. Having a separate camera watching that home office might also decrease your insurance bill as well.
As soon as you have determined what areas which you should focus, you will have to measure the areas. The range of area needing monitoring is crucial to the size of camera or cameras you buy.
Although you can choose five sizes of camera - ranging in size from one quarter to two thirds of an inch, the wisest choices are to go no larger than one half an inch. With a camera one half inch or smaller, you'll have a more extensive choice of lenses that will work with it.
There are 4 different versions of CCTV camera lenses from which you are able to select. They are fixed aperture, manual or auto iris and zoom. An auto iris lens is ideal for outside viewing, since it adjusts itself to accommodate changes in lighting. In places where the amount of lighting stays fairly stagnant a manual iris will do. This type of lens requires that you really make the lighting adjustments by hand. Zoom lenses, just as with any camera, let you bring a viewed situation closer to your eye for enhanced visibility. Several zoom lenses offer a motorized option.
Once you know the number of cameras you are gonna need, you'll know whether or not you're going to have to have more than one monitor or whether you can make do with a switcher (one monitor, alternating location views) or a multi-plexer (several locations showing in boxes on one monitor at the same time).
Determine how long you are going to need to record before being able to take out and replace the VCR film. If the time you're going to be absent from the home, i.e., unable to take out and replace the VCR tape, is going to exceed 4-6 hours (depending on the VCR) you might not be able to make use of your household VCR. You may need to upgrade to a commercial quality recorder.
What you will have with your CCTV system is at the least one surveillance camera, a variety of lenses (pan, zoom and infrared for night vision) to focus on certain areas of your grounds and home, and a VCR (video cassette recorder) which will make a permanent record of what the camera is seeing.
If you ought to decide you want to provide CCTV security in your home, you'll need to do at least one slow walk around your home, making notes as you go, about where you need surveillance, and what areas are the most vulnerable, and needing protection. While you certainly wish to focus on your house - the place where your family's safety is the primary concern - don't neglect to include garage, breezeway, in-law quarters, front and back yard, driveway, alleyway, or any outside fence or gate entrance.
You may want more than one camera in your house. This could be important if your home is big, for example, and you are regularly in one portion of the home while a babysitter watches your kids, or a housekeeper performs his or her duties. With the prevalence of home offices, this may be particularly essential, if you are in your office all day with the door closed. Having a separate camera watching that home office might also decrease your insurance bill as well.
As soon as you have determined what areas which you should focus, you will have to measure the areas. The range of area needing monitoring is crucial to the size of camera or cameras you buy.
Although you can choose five sizes of camera - ranging in size from one quarter to two thirds of an inch, the wisest choices are to go no larger than one half an inch. With a camera one half inch or smaller, you'll have a more extensive choice of lenses that will work with it.
There are 4 different versions of CCTV camera lenses from which you are able to select. They are fixed aperture, manual or auto iris and zoom. An auto iris lens is ideal for outside viewing, since it adjusts itself to accommodate changes in lighting. In places where the amount of lighting stays fairly stagnant a manual iris will do. This type of lens requires that you really make the lighting adjustments by hand. Zoom lenses, just as with any camera, let you bring a viewed situation closer to your eye for enhanced visibility. Several zoom lenses offer a motorized option.
Once you know the number of cameras you are gonna need, you'll know whether or not you're going to have to have more than one monitor or whether you can make do with a switcher (one monitor, alternating location views) or a multi-plexer (several locations showing in boxes on one monitor at the same time).
Determine how long you are going to need to record before being able to take out and replace the VCR film. If the time you're going to be absent from the home, i.e., unable to take out and replace the VCR tape, is going to exceed 4-6 hours (depending on the VCR) you might not be able to make use of your household VCR. You may need to upgrade to a commercial quality recorder.
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