Jumat, 04 Oktober 2013

Home Wireless security cameras

best wifi security camera outdoor on Wireless Security Cameras Video Surveillance Cameras Home Surveillance ...
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almasaad


I am planning to install (Security Camera Wireless) outdoor.
1- Is there something call (UHV).
2- What kind of product should I get that doesn't be affect with other frequencies (mobile, radio)?



Answer
For wireless stuff, it would normally be "UHF". Typically this is for good audio equipment. UHF video is still used for television stations and you would need to be licensed even if only low power.

There are only two consumer wireless video methods:
1) shared band in the 2.4 GHz environment.
2) wifi (wireless compute local area network)

Both can get interference from other sources. If you want no chance of wireless interference, then you need to use a wired camera. Also, remember that "wireless" generally means only the video (and audio if the camera has a mic) signal is wireless - you still need a wire for power unless you set up some sort of battery and solar recharge equipment.

You want cameras that are rated for outdoor use... Do they need to have "night vision"?

Are you just monitoring the video?

How many cameras?
http://shop1.frys.com/search?cat=-45928&pType=pDisplay
http://shop1.frys.com/search?cat=-45926&pType=pDisplay

If you are recording, are you looking at a multi-channel DVR
http://shop1.frys.com/search?cat=-45940&pType=pDisplay
or are you turning a computer into a multichannel DVR?

If the power goes out, are you expecting this camera system to continue working? What are your battery back-up plans?

There's more, but this is a start...

I use:
http://shop1.frys.com/product/5080315?site=sr:SEARCH:MAIN_RSLT_PG
http://shop1.frys.com/product/5264307?site=sr:SEARCH:MAIN_RSLT_PG
http://shop1.frys.com/product/4698298?site=sr:SEARCH:MAIN_RSLT_PG

Wireless Home Security Surveillance Camera system?




praveen


Hello,
For my house, i want to buy a wireless camera security surveillance system. Obviously, there are too many options. Can someone give me a feedback on any preferred brand or any feedback on what I should be looking for while buying this costly system? One potential option I found so far is
Swann SWDVK-825508 8-Channel Digital Video Recorder with Smartphone Viewing and 8 x PRO-550 Cameras
by Swann



Answer
For consumer grade systems, Swann and Lorex make fine equipment. I installed a Swann 8 channel (using only 4 cameras - but planning to add 4 more cameras later). The included/free SmartPhone app for remote viewing works well but can use lots of battery power as it is a stream of video over wifi. The included 8 cameras in the system you listed don't have a very far night vision "throw" (about 10 feet). Another option to consider is this 4-camera, 8 channel DVR kit
http://www.swann.com/s/products/view/?product=1530
plus four of these:
http://www.swann.com/s/products/view/?product=1144
Any camera with a composite video feed will work including those from Lorex, Q-See and others.

Consider adding a VGA monitor or TV (I use the "extra" video inputs on 4 TVs located in different rooms of the house so visibility is not so limited to a single place).

The system you linked us to is not a "wireless" system. The connection between the cameras and the DVR is a wired connection. The cable connecting these items has a connector for the video; a connector for power and a connector for limited pan/tilt/zoom control. (The zoom is the part that actually works - you would need a pan/tilt head in order for that capability to work and the zoom is digital zoom - not optical zoom). Keep this in mind: A single cable with multiple connectors connects the camera to the DVR and power.

In a wireless video system, the camera needs power (wire #1). The video is sent to a base station wirelessly. The base station connects to the DVR (wire #2) and power (wire #3). A "wireless" security camera uses more wires than a wireless system.
http://www.swann.com/s/products/view/?product=1028

The only thing "wireless" about the DVR kit in the link you provided us is that when the DVR is added to the computer network at your house, that wifi signal sending video to a smartphone or Windows computer is wireless.

Another option is to use IP network based security cameras but a dedicated computer (rather than a standalone DVR) is needed to be recording the video. These cameras tend to be a bit more expensive, especially it they are outdoor rated. And they need local camera power, too - so not exactly "wireless" either. Because they become a node of the local house's computer (IP) network, the complexity moves from the analog camera cabling to computer network implementation.

In either case, making the video stream available to a computer or a smartphone - locally or remotely - requires a decent knowledge of computer network configuration (especially if the computer network is to be secure).




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