Wednesday, November 9, 2011

How Wireless Cameras Work

Wireless cameras are often used in the security field as a way to make video surveillance available where wires may not be available. If you are considering setting up a security system in your home, using wireless video cameras may be something to consider, depending on the layout of your home.


Wireless Cameras


The basic idea behind a wireless security camera is that the camera captures the video signal and then relays it to a wireless transmitter. The wireless transmitter then sends the signal to the wireless receiver located at the central unit of the security system. The signal is then converted back into a video feed to be displayed on a monitor or recorded for later viewing by the owner of the property. It works in much the same way as a radio signal when the video feed is transmitted.


Wireless Internet


Another type of wireless camera uses the Internet to transmit video feed instead of using a direct signal. With this option, you need a wireless router that can reach the wireless camera and the receiver. With this option, the wireless camera transmits the signal through the Wi-Fi signal and then it is picked up by the receiver through the Internet. To make this work, you will need a wireless network that stretches at least to the distance of the camera, which could be a challenge on bigger properties.


Power Source


Although wireless cameras are billed as completely "wireless" they are not completely without wires. Even though you do not need a wire for the video feed, you do need some kind of power source for the camera. Because of this, you will need to install the camera near an electrical outlet or where one can be installed. This creates a scenario that is not quite as convenient as what is implied by the term "wireless."


Considerations


Wireless security cameras are typically the most convenient when installing in an existing home in which wiring could not easily be run. By doing this, you only have to find a power source, which is usually nearby in most homes. This prevents you from having to run wiring through an older home that is not set up with this in mind. It results in less work for the installer and can be installed quicker overall.







Tags: video feed, signal then, wireless camera, need wireless, power source, security system, this option