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Wireless Video Networks Have Come A Long Way
Author : Damian Higgens
Wireless video cameras are a big savings over the hard-wired video cameras of the past. The concerns about the reliability of these units have been addressed with current wireless technologies that have been significantly improved over what some felt were initial beta systems. Performance isn’t a problem either; chatty connections or spotty throughput during peak demands or even conflicts with other wireless devices have been eliminated.
A current wireless video camera is slender (2.9” x 1.0” x 2.1”) and can fit in the palm of an adult’s hand. Low light apertures such as F2.85 provide image capture in low-light situations around two lux per second, so most monitoring situations will be possible without seeing just dark grainy images passing through a sea of white haze. Utility power for the cameras isn’t necessary – eliminating additional installation costs – with the addition of lithium ion batteries. The batteries’ long life (one year under normal conditions) keeps the camera’s image-capture abilities running smoothly without interruption, while the low cost of replacement batteries keeps the total cost of ownership for these systems to a minimum.
Connectivity between the camera and the computer is accomplished through a wireless video network. In the past, separate wireless devices were connected and installed near the camera to perform the communications. Now the wireless device is built right into the unit. USB or Ethernet wireless devices plug into the back of the workstation to collect the wireless signals. To offer increased protection, each system was set up with secure IP protocols to avoid outside intrusion. Today, both ends of the communication link are configured with the IP protocols so that the units can be installed with zero configurations. There is 128-bit video encryption installed in CMOS chips on the cameras, and the decryption is performed on the workstation. All communication to and from the devices is secure, so the movie images of idling vans spoofing or cracking the video network are not possible.
Author's Resource Box
For more resources regarding Video Monitoring or even about Wireless Live Video and especially about Wireless Video please review these pages.
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Tags: Video Monitoring, Wireless Live Video, Wireless Video
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Submitted : 2010-08-27 Word Count : 358 Popularity: 153 Times Viewed: 18
