Wireless camera with or without a digital video recorder (DVR) is an integral part of a house or office of an extensive system of security. Even when used as stand-alone, the wireless camera is presented as a serious deterrent to thieves and criminals. In addition to reasons of security, wireless cameras are used for purposes of monitoring or financial position.
Why wireless?
Over the past year, have wireless cameras are becoming increasingly popular.Traditionally, wired cameras were in use (very limited). This is partly due to the high price of wired cameras, and partly because of the need to connect the camcorder to the recorder of images / video and / or monitor to do.
With the advent of new technologies and less expensive video processing and improve memory, it has become much more feasible to create a low-budget wireless cameras for home and office surveillance.
Certainly, advances in technology and price cut-down appliesWired cameras as well, but using cheap wireless technology gives an advantage to cameras via a wired wireless because the cost of copper wires and run them from point A to point B is eliminated. Even the wires are an easy target and can be attacked if it is visible. Wires can also choose the recording device, which can be the object of attack or manipulation. These issues are captured by cameras wireless network, for wireless video signal, and the recording device can behidden, or even absent in the same building.
Similar to wired cameras, wireless cameras can be manipulated by turning the frequency with which the camera operates. E 'can set up a system that operates at two different frequencies, so that when a frequency is blocked or distorted, the other holds the transmission frequency of the photo / video.
Wireless cameras are also easy to install and easy to move when necessary, as the overhead wiringabsent.
The composition
Ideally, you should have the following components to set up a wireless camera system.
1. Wireless Camera
You must choose a CCD camera wireless technology works, construction photos / video in color and offers a resolution of about 500 (H) * 500 (V) pixels or higher. It 's very important that the camera has night vision. Infrared LEDs enable the camera to see in the dark. If you want a minimum of20 infrared LEDs and more than 10-meter radius of night vision.
If the wireless camera mounted outside the body is strong enough and I am firmly against sun, rain, wind and temperament.
E 'should have a camera with a very low lux rating point. Low lux rating allows the camera to build a clear picture even in low light conditions.
Be aware that while the signal cables are absent, you still might need to provide power to the camerawith power supply. Alternatively (if possible), using the camera's battery is fully portable and completely wireless.
2. Receiver
The receiver is the component of the system image or video signals (wireless) receives and converts these signals into a format suitable for the monitor (or TV) input. If this device is the storage of image or video, the device is called DVR (digital video recorder). Usually supported by at least DVRIGB memory. Receiver (or DVR), more than one channel. This means it should be possible (in theory) how many wireless cameras so many available channels. Technically, this is not possible, but as some of the channels can be overloaded with signals due to noise or other wireless devices nearby.
3. Monitor
In most cases you need to make your home TV to view recorded images or video. The receiver (or DVR)connected to cable TV. The TV must not be connected to DVR all the time. If it is a simple receiver, you can control the images or video in real time only. E 'small monitor can display details on battery power, that most of the receiver (or DVR) units as well. If you plan on your computer monitor to display the end ensured that the receiver or DVR compatible with PC monitors signals generated.
A subsequent articleexplain how to deal with common problems associated with wireless cameras and how to best reach a certain home or office to solve.
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