Sabtu, 15 Maret 2014

Surveillance & security Cameras?




emuleiii


I want to install some Surveillance & security Cameras for my house. outside window. i am thinking maybe 3 sides of my house . front side, drive way side and the back side of my house. good enough to cover whoever can get into my driveway and back yard....
Which brand and model is the best ? i want something relatively easy to install and use . better something can just record directly to my computer.



Answer
For home use, recorded to computer, webcams work as well as anything else. Make sure the resolution is 640x480, plug 'em in, and you're set.

As for brands and all... there are only a few manufacturers, but the cams are sold under many brand names.

Many big-box home improvement stores, stores like Costco and Sam's Club, and even large department stores, sell security systems now. Cost can run from a hundred bucks for a simple system, to many thousands of dollars.

Look for the following:
1. Video is recorded in a standard format, like AVI. Real AVI, not some proprietary container format that requires the DVR software to work with. IF you need the video for something, you want everyone to be able to see it. Proprietary software is a pain in the posterior, and gets in the way more than anything else.
2. Resolution of at least 640x480. If you have the storage, even higher. Don't let anyone tell that 160x120 is "good enough", I can guarantee that it is most definitely NOT enough. Even 320x240, which is the default for many systems, is just barely good enough some of the time, and useless more of the time.
3. You don't need to store the video for years, but you need to have at least 7 days before the system rolls over and records on top of old video.
4. YOU need to know how to operate the equipment. Don't expect somebody else to come in and extract an event for you.

I don't install video systems, I'm the guy that has to retrieve the video off the system, and then try and make it into something useful. If you follow the 4 things I mention, your video will be of much more use in case you ever need it.

How can I view my security camera via the web?




Christina


We have a camera system hooked up to record/view activity. We were told that it can be viewed from the internet but we did not have the internet hooked up during the camera install. We got rather botchy literature on the system and cannot contact the installer. I believe that I have an IP address that I can view from the menu of the system, how can I put this on the web so I can view it when we are not at the location? It records onto a DVR currently and we can view it from the actual device, we really need to monitor things when we are not there. THANKS!


Answer
This should be in the computers area, not in cameras.

Short answer: You will need to do port forwarding on your cable or DSL modem (router), assuming it is a NAT router.

Long answer:
1. You need to determine the IP number that the camera uses which is probably set by the DHCP server in your router. It will look similar to this example: 192.168.1.105. There are programs which will scan your local subnet for active IP numbers if you don't know what your camera's IP number is. Sometimes a device name can be used in lieu of the IP number when setting up port forwarding.

2. You need to determine the port number your camera uses. I'm guessing it's a http (web) port which is 80.

3. You need to set your modem (router) to perform port forwarding to your camera. You will need to consult the instruction manual on how to do this as all routers have different configuration interfaces. Your modem's configuration interface via a web browswer using the address 192.168.1.1 (this is what most manufacturers use for a local address).

4. You will need to find out your modems IP number on the WAN port. Your modem interface screen will have this information or you can go to a port scanning web site which will tell you your IP address. Beware that this IP number can change at any time, especially if your modem has gone through a power cycle. Thus, it's a good idea to check the number before trying to do remote access.

5. From the outside world, you will use the address discovered in step 4 to access your camera on a web browser. Depending on your ISP, they may block incoming traffic which means you can't remotely monitor your camera.




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